FuelPHPのバリデーションエラーが出た時の対処

Validationでエラーが出たら

FuelPHPで以下のエラーが出た場合の対処法。

RuntimeException [ Error ]:
Object class "Fuel\Core\Validation" could not be converted to string or sanitized 
asArrayAccess. Whitelist it in security.whitelisted_classes in app/config/config.php t
o allow it to be passed unchecked.
COREPATH/classes/security.php @ line 268

// Throw exception when
it wasn't whitelisted and can't be converted to String
if ( ! method_exists($value, '__toString'))
{
throw new \RuntimeException('Object class "'.get_class($value).'" could not be converted to string or '.
'sanitized as ArrayAccess. Whitelist it in security.whitelisted_classes in app/config/config.php '.
'to allow it to be passed unchecked.');
  }
$value = static::htmlentities((string) $value, $flags, $encoding, $double_encode);

config/config.phpを編集

config/config.phpに’Fuel\Core\Validation’,を追加します。


'whitelisted_classes' => array(
    'Fuel\\Core\\Response',
    'Fuel\\Core\\View',
    'Fuel\\Core\\ViewModel',
    'Fuel\\Core\\Validation',
    'Closure',
),

これでエラーは出なくなります。